Manual:Infantry Manual:MOS:IN Specialist

3900 Intelligence Specialist
A job code used to denote a marine who operates & maintains radio equipment in the field. They would receive messages (plain or encrypted) and pass them along to their unit commanding officer. They would also send messages (plain or encrypted) for their commanding officer to forward operating base or headquarters. Requirements: IN100, IN101, IN102, IN104, IN106, IN113, IN114, IN121, IN122, IN151, IN155, NCO100, NCO151, PD100, PD205, SU100, SU110, SU201, SU250

3910 Communications Coordinator
A job code used to denote a marine who operates & maintains radio equipment in the field. They would re-ceive messages (plain or encrypted) and pass them along to their unit commanding officer. They would also send messages (plain or encrypted) for their commanding officer to forward operating base or headquarters. Requirements: IN100, IN101, IN102, IN104, IN106, IN113, IN114, IN121, IN122, IN151, IN155, MO100, MO156, NCO100, NCO151, PD100, PD205, SU100, SU110, SU201, SU240

3920 Security Specialist
A job code used to denote a marine who is trained is security operations. They use these skills as bodyguards to unit leadership and recon operations. Requirements: IN100, IN101, IN102, IN104, IN106, IN113, IN114, IN122, IN151, IN153, NCO100, NCO151, PD100, PD205, SU100, SU110, SU201, SU240

3930 Shuttle Assault Transport Specialist
A job code used to denote a marine who works with the Maritime Operations vessels. Their duties are to de-liver Infantry units (fire teams & squads) to shore. Requirements: AE100, AE201, IN100, IN101, IN102, IN104, IN106, IN113, IN114, IN122, IN151, MO100, MO151, PD100, PD205, SU100, SU110

3940 Riverine Transport Specialist
A job code used to denote a marine who works with the Maritime Operations vessels. Their duties are to de-liver Infantry units (fire teams & squads) to shore. Requirements: IN100, IN101, IN102, IN104, IN106, IN113, IN114, IN122, IN151, IN153, MO100, MO151, MO201, MO211, PD100, PD205, SU100, SU110